Over 10,000+ customers' choice, Focus on screening industry 40+ years
Small and medium‑sized salt plants typically face the following practical issues during screening:
Multiple varieties, smaller batch sizes – demanding flexible grading. Small and medium‑sized salt plants often need to simultaneously produce multiple particle size specifications – coarse salt, medium salt, fine salt, ultra‑fine salt powder – to meet different customer requirements. If equipment can only handle a single specification, efficiency is compromised – requiring either multiple screening passes or multiple machines, increasing investment and floor space.
Moderate throughput but requiring continuous, stable operation. Although daily throughput is lower than large plants, small and medium‑sized salt plants still require continuous production to ensure supply capability. Insufficient equipment capacity leads to material accumulation; frequent equipment failure affects delivery schedules.
Hygiene standards are non‑negotiable. Salt is consumed directly – production equipment must meet food‑grade hygiene standards. All parts that contact salt should be made of food‑grade stainless steel to ensure no heavy metal contamination during screening.
Limited investment budget – value for money is a priority. For small and medium‑sized salt plants, return on equipment investment is an important consideration. Excessively high equipment investment may create unnecessary financial pressure, while insufficient investment may compromise quality and efficiency.
The multi‑deck grading design of Gaofu's SZF series salt linear vibrating screen is the key to meeting the multi‑product production needs of small and medium‑sized salt plants:
1‑5 screen decks for flexible configuration – one feed, multiple outputs. The equipment supports flexible configurations of 1 to 5 screen decks arranged from coarse to fine. Material enters through the feed port and passes through each deck sequentially – coarse particles are retained on the upper deck, medium particles pass through the upper deck and are retained on the lower deck, and fine powder passes through all decks into the bottom hopper. A single machine can simultaneously produce 2 to 6 different particle size specifications of salt. Coarse salt, medium salt, and fine salt are produced in one feed – no need for multiple screening passes or machines in series.
High screening accuracy eliminates size mixing and cross‑contamination. Screened particles are uniform in size with high screening accuracy. The precise multi‑deck grading ensures purity of each particle size grade – no fines in coarse salt, no coarse particles in fine salt. For edible salt products sold to the market, this purity assurance directly determines product quality grade and market competitiveness.
Wide screening mesh coverage for flexible adaptation to different requirements. Screening particle size covers 0.075 mm to 20 mm (approx. 8 mesh to 200 mesh), with screen mesh sizes selectable according to salt product particle size requirements. Whether for coarse salt, medium salt, fine salt, or ultra‑fine salt powder, simply change the screen to adjust the particle size range.
Scalable production in small and medium‑sized salt plants requires equipment with sufficient processing capacity and the ability to run stably for extended periods. Gaofu's SZF series salt linear vibrating screen provides assurance across multiple dimensions:
Large throughput – a single machine meets line requirements. The linear vibrating screen uses dual vibrating motor drive – material moves in a straight line on the screen surface, providing large throughput and high efficiency. Gaofu's SZF series linear vibrating screen achieves hourly throughput of up to 20 tonnes. For small and medium‑sized salt plants processing dozens of tonnes per day, a single machine matches the capacity rhythm of the entire line.
Strong continuous operation stability – suitable for production line operation. The equipment features a horizontal enclosed structure with good sealing and no dust emission. It can work with conveyors and packaging machines for continuous operation. High stability makes it suitable for long‑duration operation, reducing production interruptions caused by equipment failure.
Low energy consumption with high output – controllable operating costs. Gaofu's linear vibrating screen features low energy consumption, high output, simple structure, and easy maintenance. While achieving large throughput, equipment operating costs remain at a reasonable level.
Multiple models for different capacity requirements. Gaofu's SZF series offers various screen sizes from 500×2000 mm to 1500×4000 mm – flexible selection based on the actual capacity needs of small and medium‑sized salt plants, avoiding the resource waste of over‑sized equipment.
The most easily overlooked yet most critical challenge in salt screening is corrosion. Salt (sodium chloride) is corrosive to metals in humid environments. Sea salt contains even more aggressive corrosive components such as magnesium chloride and calcium chloride. Ordinary carbon steel equipment rusts rapidly in salt environments – not only shortening equipment life but also contaminating the product with rust particles.
Food‑grade stainless steel construction ensures salt hygiene and safety. All parts that directly contact salt are made of 304 or 316L food‑grade stainless steel. 316L stainless steel – with its high nickel and molybdenum content – offers excellent corrosion resistance, particularly suitable for handling chloride‑containing sea salt, preventing equipment rusting or material contamination caused by salt corrosion. It meets food‑grade production requirements, ensuring no heavy metal contamination during screening.
Fully enclosed structure reduces dust and corrosion. The equipment features a fully enclosed design with good sealing and no dust emission. This design improves the workshop environment and reduces salt dust corrosion on external equipment structures.
Long screen life and low maintenance costs. The linear vibrating screen has a well‑designed structure with low failure rates. The unique screen mounting structure ensures uniform screen tension and longer screen life. The modular design enables rapid, simple screen changes, reducing downtime.
Founded in the 1980s, Gaofu Machinery has over 40 years of R&D and manufacturing experience in the screening industry and has been recognised as a National Specialised and Sophisticated "Little Giant" Enterprise. In the salt industry, Gaofu has provided proven screening line solutions to enterprises including Pakistan Salt Industry and Shandong Salt. Gaofu's food screening equipment is also trusted and used by numerous well‑known brands, including Nestlé, Xizhilang, and Want Want Group.
The core value of Gaofu's SZF series salt linear vibrating screen lies in providing small and medium‑sized salt plants with the balance between accuracy, capacity, and investment:
Multi‑deck grading: 1‑5 screen decks for flexible configuration – one feed, multiple specifications
Large throughput: Single‑machine throughput up to 20 tonnes/hour – matching scalable production rhythm
Reliable accuracy: Screening accuracy over 95% – eliminating size mixing and cross‑contamination
Durable and corrosion‑resistant: 304/316L food‑grade stainless steel – withstanding salt corrosion
Moderate investment: Multiple models available – matching different capacity requirements and investment budgets
Food Industry Client Testimonials
Nestlé, CP Group, Haitian Flavour & Fragrance, Yihai Kerry, Yili, Mengniu,Shuanghui, Wahaha, Master Kong, Want Want, Anjoy Foods, Angel Yeast,Yangyuan Foods, Uni-President Enterprises, Qiaqia Food, Luhua Group,Alpenliebe, Golden Monkey, Orion, Xizhilang,Sanquan Foods, Synear Food, Oishi, Wong Lo Kat, Yanjing Beer, Seamild,Jinpai, Chubang, Hengshun Vinegar Industry, Longda Group, Beijing Daoxiangcun, Anhe Dairy,Weiwei Group, Xiangpiaopiao, Maiquer, Tianbing, Binqi Food, Ligao Okun
Fortune 500 Client Testimonials
CNPC、CSCEC、Sinochem Holdings、CRCC、China Minmetals Corporation、CNOOC、CR、Sinopharm、CHN Energy、COFCO Corporation、Huawei Technologies、PowerChina、CITIC Group、Wuchan Zhongda Group、NORINCO、Chalco、CNBM、 Shaanxi Coal and Chemical Industry Group、Ansteel Group、CETC、CSSC、CASC、CEC、Jinchuan Group、CASIC、Conch Cement、CNNC、SPH、Shanxi Coking Coal Group、 Zhongtai Chemical、GPHL、DEC、Sinosteel Corporation、MCC、China National Salt Industry Chemical、China Baowu Steel Group、China Animal Husbandry Industry Co., Ltd.、CECEP
About Gaofu
Xinxiang Gaofu Machinery Co., Ltd. was founded back in the 1980s. With over 40 years of development, it has been certified as a National-level Specialized, Refined, Unique & Innovative Little Giant Enterprise, National Green Factory, National High-tech Enterprise, and National Intellectual Property Advantage Enterprise, and serves as the President Unit of China Vibration Screening Industry Association.
The company is accredited with the Henan Provincial Industrial Design Center, Henan Provincial Engineering Technology Research Center for Intelligent On-line Screening System, and Xinxiang Municipal Engineering Technology Research Center for Fine Screening.
Gaofu has obtained more than 500 patents including invention patents, utility model patents and design patents, been awarded the Science and Technology Achievement Prize issued by the Ministry of Industry and Information Technology of China, and participated in drafting and formulating 4 national standards.
Gaofu's product portfolio covers multiple series and hundreds of specifications, including vibrating screening equipment, conveying equipment, coal crushing equipment, filtration equipment and automatic material handling systems.
Core products include vibrating screens, screening machines, vibratory sifters, rotary vibrating screens, ultrasonic vibrating screens, linear vibrating screens, airflow screens, gyratory screens, roller screens, dewatering screens, bar screens, vacuum feeding machines, dust-free feeding stations, bulk bag feeding stations, feeding systems, automatic powder feeding systems, automatic slag-discharging filters, leaf filters, clay filters, toothed roll crushers, coal crushers and other machinery.
These products are widely applied in food, pharmaceutical, chemical, metallurgy, construction materials, mining, thermal power, environmental protection and many other industries, winning recognition and trust from over 10,000 clients worldwide.
Gaofu products enjoy strong sales across Greater China, and are exported to more than 100 countries and regions such as Russia, Canada, the United States, New Zealand, Japan, Brazil and South Africa.
Upholding the corporate mission of Improving material quality & efficiency to fully satisfy customer demands, Gaofu maintains long-term partnerships with clients to achieve win-win development.
At present, Gaofu is an official qualified supplier for numerous Fortune Global 500 enterprises, including CNPC, Sinopec, Sinochem Holdings, China Resources Group, Sinopharm Group, COFCO, China National Building Material, China Aerospace Science and Technology Corporation, Jinchuan Group and more.
Gaofu Machinery ranks No.1 in global sales volume of vibrating screens.
In May 2024, Frost & Sullivan, a world-renowned international consulting firm, issued a Market Position Verification Certificate confirming that Gaofu achieved the world's largest shipment volume of vibrating screens in the global market in 2023.
